Nail pulling gun

Abstract

The utility model discloses a nail pulling gun. A pneumatic driving device is arranged in the gun body, the outer end of a nail pulling rod of the pneumatic driving device extends into the gun barrel, a limiting groove is formed in the peripheral face, close to the outer end, of the nail pulling rod, the nail pulling head is sleeved on the nail pulling rod in a penetrating mode, and a positioning hole is formed in the nail pulling head corresponding to the limiting groove. The inner end of the limiting block penetrates through the positioning hole to be inserted into the limiting groove, and the limiting block and the nail pulling head are detachably connected and fixed through a fastener. The nail pulling head and the nail pulling rod are connected in a limiting mode through the limiting block, the limiting block and the nail pulling rod are fixedly connected through the fastening piece, in this way, the limiting block is used for bearing force, the fastening piece is prevented from being damaged, the fastening piece prevents the limiting block from automatically disengaging, and using is safer and more reliable.

Description

Technical Field

[0001] The utility model relates to a nail remover. Background Art

[0002] Chinese patent CN213971007U discloses a nail remover in which the rod and the head are connected and limited by a single pin. If the pin has an interference fit during use, disassembly of the rod and the head becomes difficult. If the pin has a clearance fit, the pin could fall off during use, causing the head to separate from the rod. This poses a safety hazard and warrants further improvement. Utility Model Content

[0003] The utility model aims to provide a nail remover which is safe to use and easy to assemble and disassemble.

[0004] The purpose of this utility model is achieved like this.

[0005] A nail remover comprises a gun body, a gun barrel and a nail remover head. A pneumatic drive device is provided in the gun body. The outer end of a nail remover rod of the pneumatic drive device extends into the gun barrel. The gun body also comprises a fastener and a limit block. A limit groove is provided on the circumference of the nail remover rod near the outer end. The nail remover head is sleeved on the nail remover rod. A positioning hole is provided on the nail remover head corresponding to the limiting groove. The inner end of the limit block passes through the positioning hole and is inserted into the limiting groove. The limit block and the nail remover head are detachably connected and fixed by a fastener.

[0006] The utility model realizes the limiting connection between the nail driving head and the nail driving rod through the limiting block, and the fastener connects and fixes the limiting block and the nail driving rod, so that the limiting block is stressed to avoid damage to the fastener, and the fastener prevents the limiting block from detaching by itself, which is safer and more reliable to use.

[0007] Furthermore, a first step portion is formed between the inner end and the outer end of the limit block in a side direction, and a second step portion is provided on the nail removing head corresponding to the first step portion. The first step portions offset each other to limit the limit block from directly detaching from the limit groove along the radial direction of the nail removing rod.

[0008] The limiting block is difficult to separate from the limiting groove by itself after being subjected to force, and the connection between the nail driving head and the nail driving rod is more firmly.

[0009] Furthermore, a fixing seat is provided on the side of the outer end of the limit block corresponding to the nail head, and the second step portion is formed between the fixing seat toward the side of the outer end of the limit block and the positioning hole. A through hole is provided on the fixing seat, and a threaded hole is provided on the outer end of the limit block. The fastener is a screw, and the screw passes through the through hole and the threaded hole for threaded connection.

[0010] The nail lifting head and the limiting block are simple and easy to disassemble and assemble.

[0011] Furthermore, an inclined surface is provided on one side of the fixing seat corresponding to the positioning hole, and the inner end of the limit block is tilted in the horizontal direction and inserted into the limit groove through the positioning hole. After the screw and the threaded hole are threadedly connected and locked, the limit block is straightened in the horizontal direction.

[0012] The inclined surface facilitates the insertion of the limit block into the limit groove.

[0013] Furthermore, the limiting groove is provided on the side of the nail driving rod away from the gun body handle, and the limiting block is inserted into the limiting groove from the radial direction of the nail driving rod toward the gun body handle.

[0014] The nail driving rod drives the nail driving head to move through the limit block. The nail opening of the nail driving head is close to the nail driving rod, so the nail driving head is not easy to be damaged.

[0015] Furthermore, the limiting groove and the limiting block are in contact through a plane.

[0016] The limiting block and limiting groove are not easily deformed.

[0017] Furthermore, the gun barrel is provided with a protective device corresponding to the staple port of the nail head, the protective device includes a fixed cover and a movable cover, the fixed cover is fixed on one side of the gun barrel, the fixed cover is provided with a first opening toward the staple port, the movable cover is movably arranged along the length direction of the gun barrel relative to the fixed cover, and the movable cover is provided with a second opening toward the staple port.

[0018] The movable cover can be adjusted to control the distance between the nail clamping opening and the first opening or the second opening according to actual conditions, so as to prevent the pulled nails from flying out and injuring people.

[0019] Furthermore, the protective device also includes an elastic arm, one end of the elastic arm is connected and fixed to the fixed cover or the gun barrel, and one end of the elastic arm is bent to form a clamping protrusion and an operating part. The fixed cover is provided with a clearance hole corresponding to the clamping protrusion, and at least two clamping slots are provided on the movable cover along the length direction. The elastic arm has a tendency to make the clamping protrusion pass through any clamping slot and be clamped into the clearance hole. The operating part is pushed outward to make the clamping protrusion disengage from the clamping slot, and the movable cover moves relative to the fixed cover until the operating part is released, the clamping protrusion is clamped into another clamping slot and the clearance hole, and the movable cover and the fixed cover are relatively fixed.

[0020] The movable cover is simple and easy to adjust.

[0021] This utility model utilizes a limit block to achieve a limited connection between the nail puller head and the nail puller rod. Fasteners securely connect the limit block and the nail puller rod. This utilizes the limit block to bear the force, preventing damage to the fasteners. The fasteners also prevent the limit block from detaching, making it safer and more reliable. The fasteners allow for easy assembly and disassembly between the nail puller head and the limit block, making operation simple and easy. The movable cover can be adjusted to control the distance between the nail opening and the first or second openings, depending on the actual situation, to prevent pulled nails from flying out and injuring people. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1It is a schematic diagram of the three-dimensional structure of embodiment 1.

[0023] Figure 2 This is a schematic cross-sectional view of the first embodiment.

[0024] Figure 3 This is a schematic diagram of the partial installation structure of the nail driving rod, nail driving head, fastener and limit block in Example 1.

[0025] Figure 4 for Figure 2 Schematic diagram of the AA cross-section structure (barrel omitted).

[0026] Figure 5 This is a schematic diagram of the exploded structure of the gun barrel, fixed cover, movable cover and elastic arm in Example 1.

[0027] Figure 6 This is a schematic diagram of the installation structure of the gun barrel, fixed cover, movable cover and elastic arm in Example 1.

[0028] Figure 7 for Figure 6 Schematic diagram of the cross-sectional structure along the middle BB direction. DETAILED DESCRIPTION

[0029] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0030] Example 1, see Figure 1-7 As shown, a nail remover includes a gun body 1, a gun barrel 2, a nail remover head 3 and a protective device 4.

[0031] A pneumatic drive device 10 is provided within the gun body 1. The outer end of the nail-pulling rod 11 of the pneumatic drive device 10 extends into the gun barrel 2. The nail-pulling rod 11 and the nail-pulling head 3 are connected by a fastener 5 and a stop block 6. Specifically, a stop groove 12 is provided on the circumference of the nail-pulling rod 11 near the outer end. The stop groove 12 is located on the side of the nail-pulling rod 11 away from the handle of the gun body 1. The nail-pulling head 3 is inserted into the nail-pulling rod 11 through its axial hole 30. A positioning hole 31 is provided in the nail-pulling head 3 corresponding to the stop groove 12. The inner end of the stop block 6 passes through the positioning hole 31 and is inserted into the stop groove 12. The stop block 6 and the nail-pulling head 3 are detachably connected and fixed by the fastener 5. The stop block 6 is inserted into the stop groove 12 radially from the nail-pulling rod 11 toward the handle of the gun body 1, that is, the stop block 6 is inserted from the side of the nail-pulling head 3's nail-engaging opening, facilitating assembly and disassembly of the fastener 5 and the stop block 6. The pneumatic drive device 10 is prior art and will not be described in detail in this embodiment.

[0032] A first step 61 is formed between the inner end of the limit block 6 and the outer end of the limit block 6 in a side direction. The nail driving head 3 is provided with a second step 33 corresponding to the first step 61. The first step 61 and the nail driving rod 11 are offset against each other to prevent the limit block 6 from directly disengaging from the limit groove 12 along the radial direction of the nail driving rod 11. A fixing seat 34 is provided on the side of the nail driving head 3 corresponding to the outer end of the limit block 6. The second step 33 is formed between the fixing seat 34 facing the side of the outer end of the limit block 6 and the positioning hole 31. A through hole 35 is provided on the fixing seat 34. A threaded hole 62 is provided on the outer end of the limit block 6. The fastener 5 is a screw, which passes through the through hole 35 and is threadedly connected to the threaded hole 62.

[0033] An inclined surface 32 is provided on one side of the positioning hole 31 corresponding to the fixing seat 34. The inner end of the limit block 6 is tilted in the horizontal direction through the positioning hole 31 and inserted into the limit groove 12. After the screw and the threaded hole 62 are threadedly connected and locked, the limit block 6 is straightened in the horizontal direction.

[0034] In this embodiment, the limiting groove 12 and the limiting block 6 are in contact with each other through a plane, that is, the cross-sections of the limiting groove 12 and the limiting block 6 in the vertical direction are rectangular.

[0035] The protective device 4 comprises a fixed cover 7, a movable cover 8, and an elastic arm 9. The fixed cover 7 is fixed to one side of the gun barrel 2 and has a first opening 70 facing the staple opening. The movable cover 8 is movable relative to the fixed cover 7 along the length of the gun barrel 2 and has a second opening 80 facing the staple opening. Specifically, the movable cover 8 is positioned outside the fixed cover 7. One end of the elastic arm 9 is fixedly connected to the fixed cover 7. One end of the elastic arm 9 is bent to form a locking protrusion 91 and an operating portion 92. The fixed cover 7 has a clearance hole 71 corresponding to the locking protrusion 91. The movable cover 8 has three locking grooves 81 along its length. The elastic arm 9 has a tendency to force the locking protrusion 91 through any of the locking grooves 81 and into the inner clearance hole 71. By moving the operating portion 92 outward, the locking protrusion 91 disengages the locking groove 81, causing the movable cover 8 to move relative to the fixed cover 7 until the operating portion 92 is released, causing the locking protrusion 91 to lock into another of the locking grooves 81 and the clearance hole 71, securing the movable cover 8 and the fixed cover 7 relative to each other.

[0036] As used in this utility model, the terms: first, second, etc. do not indicate any order, quantity or importance, but are only used to distinguish.

[0037] As used in this utility model, the terms "a", "an", etc. do not indicate a limitation of quantity, but rather indicate the presence of at least one of the mentioned objects.

[0038] For example, terms indicating orientation or position used in this utility model, such as front end, rear end, top, bottom, side, longitudinal, transverse, middle, center, outside, inside, horizontal, vertical, left, right, above, below, etc., are intended to reflect relative positions rather than absolute positions.

[0039] As used in this invention, terms such as "substantially," "overall," "approximately," and "similar" are qualifiers that indicate that a characteristic exists but a certain deviation is permitted. The amount of the permitted deviation may vary depending on the specific context.

Claims

1. A nail remover, comprising a gun body, a gun barrel and a nail remover head, wherein a pneumatic drive device is provided in the gun body, and the outer end of the nail remover rod of the pneumatic drive device extends into the gun barrel, wherein the nail remover head is provided with a pneumatic drive device. It also includes fasteners and limit blocks. A limit groove is provided on the circumference of the nail puller rod near the outer end. The nail puller head is inserted into the nail puller rod. A positioning hole is provided on the nail puller head corresponding to the limit groove. The inner end of the limit block passes through the positioning hole and is inserted into the limit groove. The limit block and the nail puller head are detachably connected and fixed by fasteners.

2. The nail remover according to claim 1, wherein: A first step portion is formed between the inner end and the outer end of the limit block in a side direction, and the nail removing head is provided with a second step portion corresponding to the first step portion. The first step portion and the second step portion offset each other to limit the limit block from directly escaping from the limit groove along the radial direction of the nail removing rod.

3. The nail remover according to claim 2, wherein: A fixing seat is provided on the side of the outer end of the limit block corresponding to the nail head, and the second step portion is formed between the fixing seat facing the outer end of the limit block and the positioning hole. A through hole is provided on the fixing seat, and a threaded hole is provided on the outer end of the limit block. The fastener is a screw, and the screw passes through the through hole and the threaded hole for threaded connection.

4. The nail remover according to claim 3, wherein: An inclined surface is provided on one side of the fixing seat corresponding to the positioning hole, and the inner end of the limit block is tilted in the horizontal direction through the positioning hole and inserted into the limit groove. After the screw and the threaded hole are threadedly connected and locked, the limit block is straightened in the horizontal direction.

5. The nail remover according to claim 1, wherein: The limiting groove is arranged on the side of the nail driving rod away from the gun body handle, and the limiting block is inserted into the limiting groove from the radial direction of the nail driving rod toward the gun body handle.

6. The nail remover according to claim 1, wherein: The limiting groove and the limiting block are in contact through a plane.

7. The nail remover according to claim 1, wherein: The gun barrel is provided with a protective device corresponding to the nail opening of the nail head, and the protective device includes a fixed cover and a movable cover. The fixed cover is fixed on one side of the gun barrel, and the fixed cover is provided with a first opening toward the nail opening. The movable cover is movably arranged along the length direction of the gun barrel relative to the fixed cover, and the movable cover is provided with a second opening toward the nail opening.

8. The nail remover according to claim 6, wherein: The protective device also includes an elastic arm, one end of which is connected and fixed to the fixed cover or the barrel, and one end of the elastic arm is bent to form a clamping protrusion and an operating part. The fixed cover is provided with a clearance hole corresponding to the clamping protrusion, and at least two clamping slots are provided on the movable cover along the length direction. The elastic arm has a tendency to make the clamping protrusion pass through any clamping slot and be clamped into the clearance hole. The operating part is pushed outward to make the clamping protrusion disengage from the clamping slot, and the movable cover moves relative to the fixed cover until the operating part is released, the clamping protrusion is clamped into the other clamping slot and the clearance hole, and the movable cover and the fixed cover are relatively fixed.

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